Three-Layer Architecture Pattern | Spring Boot Application Three-Layer Architecture

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Spring Boot Application Three Layer Architecture | Three Layer Architecture Pattern:
The three-layer architecture pattern is a common architectural pattern used in Spring Boot applications to promote separation of concerns, modularity, and maintainability. It divides an application into three distinct layers: presentation layer, business logic layer, and data access layer. Each layer has its own responsibilities and interacts with the adjacent layers in a controlled manner.

Presentation Layer:
The presentation layer, also known as the web layer or the user interface (UI) layer, is responsible for handling user interactions and presenting information to the users. In a Spring Boot application, this layer typically consists of controllers or REST endpoints that receive and process incoming HTTP requests.

Business Logic Layer:
The business logic layer, also known as the service layer, contains the core business logic and rules of the application. In a Spring Boot application, the business logic layer typically consists of service classes that handle complex operations, coordinate transactions, and apply business rules and validations.

Data Access Layer:
The data access layer, also known as the persistence layer, is responsible for interacting with the underlying data storage systems, such as databases or external APIs.

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